Feasibility of particle image velocimetry for low-speed unconventional vapor flows
Autor: | Ferdinand Schrijer, Matteo Novara, M. Gallo, A.J. Head, Piero Colonna |
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Rok vydání: | 2019 |
Předmět: |
Materials science
General Chemical Engineering Aerospace Engineering 02 engineering and technology 01 natural sciences Noise (electronics) 010305 fluids & plasmas Physics::Fluid Dynamics 020401 chemical engineering 0103 physical sciences Seeding technique Low speed rotating organic vapor flow 0204 chemical engineering Stokes number Seeding technique Fluid Flow and Transfer Processes Natural convection Mechanical Engineering Low speed rotating organic vapor flow Mechanics Particle image velocimetry Nuclear Energy and Engineering Flow (mathematics) Particle Vector field Seeding Siloxane fluids |
Zdroj: | Experimental Thermal and Fluid Science, 102 |
ISSN: | 0894-1777 |
DOI: | 10.1016/j.expthermflusci.2018.10.028 |
Popis: | This work assesses the feasibility of the planar PIV technique to study the characteristics of a siloxane vapor D4. Titanium dioxide (TiO2) seeding particles were used to track the motion around a rotating disk in a low speed flow. Vector fields of natural convection (NC) and a superposition of NC and rotating flow were selected as exemplary cases. The particles were capable of tracing the flow since the calculated Stokes number St is 6.5×10-5. The quality of the experimental data is assessed by means of particle seeding density and particle image Signal to Noise ratio (S/N). The final results are deemed acceptable for an accurate assessment of the flow field. Rejected outliers are below 2.3% and the relative uncertainties corresponding to the average velocity fields are below 1%. |
Databáze: | OpenAIRE |
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